International Conference Power Transformers, 6-7 April 2000, New Delhi, India

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However these relations can be applied only when the transformer has been
under steady temperature conditions for some time. ... hot spot temperature to
determine whether stability conditions allow for application of the oil-paper
moisture partition curves. ... This function is used in the ABB T-Monitor systems to
characterise the diffusion time constant of winding insulation in the hot-spot area.
... The reference moisture level from material ageing tests is typically 0.2 to 0.3 %
by weight.

Title

:

International Conference Power Transformers, 6-7 April 2000, New Delhi, India

Author

:

S. V. R. Rao, A. K. Kapur, C. M. Sharma

Publisher

:

- 2000

ISBN-13

:

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